package com.example.boot01.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@Controller
public class HelloController {
    @RequestMapping("/hello")
    @ResponseBody   //通过返回值的方式给客户端响应数据
    public String hello(){
        return "请求成功!";
    }
}
